exhaust gas charger for a vehicle engine

ABSTRACT

An exhaust gas charger for a vehicle engine which includes an exhaust pipe with narrow openings at both ends thereof and a wide center cavity, an inner pillar at the axis of the pipe, a circular body, a wind skirt, a plurality of tension springs and a plurality of pulling rods, characterized in that the exhaust pipe is formed from the inner pillar having one end being mounted with a top tube and the other end is mounted with a rear tube such that the top tube and the rear tube are engaged with each other and a spring suspension hook is positioned at the engaging area of the two tubes and the circular body is positioned at the interior of the top tube and has a larger size than the opening of the top tube.

BACKGROUND OF THE INVENTION

(a) Technical Field of the Invention

The present invention relates to an exhaust gas charger, and inparticular, an exhaust gas charger which improves the torque and powerof an engine by controlling the exhaust gas from the engine.

(b) Description of the Prior Art

A vehicle engine generates torque and power which drive a vehicle tomove uphill or to smoothly cruise on a flat road. In the course ofengine operation, exhaust gas is discharged, and if the discharging ofexhaust gas can be delayed, and the pressure of the exhaust gas isrecycled, a high torque of the engine is obtained. As for the power ofthe engine, if the exhaust gas can be fully controlled to discharge, ahigher power could be obtained. Thus, the discharging of exhaust gas isto be controlled in order to obtain high torque and power.

As disclosed in prior art, U.S. Pat. No. 1,576,269, the spring withinthe spring will lost its elasticity at a high temperature and therefore,the device loses the function intended to improve torque and speed. Thedevice is only applicable at low RPM is delaying the discharging ofexhaust gas to increase torque. However, at a high speed, it could notsufficiently discharge the exhaust gas.

Accordingly, it is an object of the present invention to provide anexhaust gas charger for a vehicle engine which mitigates the abovedrawbacks.

SUMMARY OF THE INVENTION

The primary purpose of the present invention is to provide an exhaustgas charger for a vehicle engine comprising an exhaust pipe with narrowopenings at both ends thereof and a wide center cavity, an inner pillarat the axis of the pipe, a circular body, a wind skirt, a plurality oftension springs and a plurality of pulling rods, characterized in thatthe exhaust pipe is formed from the inner pillar having one end beingmounted with a top tube and the other end is mounted with a rear tubesuch that the top tube and the rear tube are engaged with each other anda spring suspension hook is positioned at the engaging area of the twotubes and the circular body is positioned at the interior of the toptube and has a larger size than the opening of the top tube, and thecenter circular hole of the circular body allows the passage of theinner pillar such that the circular body is allowed to reciprocateupward along the inner pillar, the circular body faces the rear end ofthe opening of the top tube and the pulling rods are mounted verticallyto the circular body at equidistant such that the other end of thepulling rod secured to the circular body is protruded a lateral hole atthe rear pipe which corresponds to the frame at the opening of the rearpipe and the windward side of the wind skirt is provided with a windskirt lateral hole, and a screw nut is used to secure the pulling rods,and one end of the pulling spring is hooked to the surrounding of thewind skirt at an appropriate equidistant position, and the other end ofthe pulling spring is hooked onto the spring suspension hook, and theframe is mounted with an adjustable screw, wherein the rod end of thescrew faces the circular body.

Another object of the present invention is to provide an exhaust gascharger for vehicle engine, wherein at low speed driving, the circularbody urges the inner wall of the top tube which is the minimum gap forthe exhaust gas such that the discharging of the exhaust is delayed, andthe pressure of the exhaust gas is recycled back, thus torque isincreased.

The foregoing object and summary provide only a brief introduction tothe present invention. To fully appreciate these and other objects ofthe present invention as well as the invention itself, all of which willbecome apparent to those skilled in the art, the following detaileddescription of the invention and the claims should be read inconjunction with the accompanying drawings. Throughout the specificationand drawings identical reference numerals refer to identical or similarparts.

Many other advantages and features of the present invention will becomemanifest to those versed in the art upon making reference to thedetailed description and the accompanying sheets of drawings in which apreferred structural embodiment incorporating the principles of thepresent invention is shown by way of illustrative example.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view of an exhaust gas charger for a vehicleengine in accordance with the present invention.

FIG. 2 is a sectional view of an exhaust gas charger for a vehicleengine in accordance with the present invention.

FIG. 3 is an application view showing the pressure of the charger beingsmaller than that of the tension spring of the present invention.

FIG. 4 is an application view showing the pressure of the charger beinglarger than that of the tension spring of the present invention.

FIG. 5 is an application view showing the pressure of the chargertogether with force of the wind and pressure exceeding that of thetension spring of the present invention.

FIG. 6 is a conventional art, U.S. Pat. No. 1,576,269.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The following descriptions are of exemplary embodiments only, and arenot intended to limit the scope, applicability or configuration of theinvention in any way. Rather, the following description provides aconvenient illustration for implementing exemplary embodiments of theinvention. Various changes to the described embodiments may be made inthe function and arrangement of the elements described without departingfrom the scope of the invention as set forth in the appended claims.

Referring to FIGS. 1 and 2, there is shown an exhaust gas charger for anengine used in vehicle. The charger comprises an exhaust pipe withnarrow openings at both end thereof and a wide center cavity, an innerpillar 4 at the axis of the exhaust pipe, a circular body 12, a windskirt 7, a plurality of tension springs 8 and a plurality of pullingrods 5. The exhaust pipe has the inner pillar 4 which has one endpassing through the center hole 1-1 of a top tube 1, and is then lockedusing a screw nut 4-1. The other end of the exhaust pipe is mounted witha rear tube 6 having a center hole 6-1 and a screw nut 4-1 is then usedto secure the tubes such that the top tube 1 and the rear tube 6 areengaged. A spring suspension hook 3 is provided to the engaging area,and the circular body 12 is formed from a hood body 2 having a sealingplate 2-1 at the bottom thereof and is placed within the top tube 1. Thesize of the circular body is slightly larger than the opening 1-2 of thetop tube. The center circular hole 2-4, 2-5 allows the inner pillar 4 topass through such that the circular body 12 is slidably moved along theinner pillar 4. The circular body 12 is facing the rear end of theopening 1-2 of the top tube and at the circular body, at equidistant isformed with side holes 2-2, 2-3, and the pulling rod 5 such that thepulling rod 5 being secured to the other end of the circular body 12 isextended out the opening (6-4) frame corresponding to the side hole 6-2of the rear tube, and the windward side of the wind skirt 7 is providedwith side hole 7-1 which is connected using screw nut 5-1. One end ofthe tension spring 8 is connected to the surrounding of the wind skirt 7and is positioned at equidistant the spring hook 7-2. The other end ofthe spring 8 is hooked to a spring suspension ring 3-1 corresponding tothe coiled spring suspension ring 3. At an appropriate position of theframe of the opening 6-4, an adjustable screw hole 6-3 is provided formounting with an adjustable screw 9 having a screw shaft facing thecircular body 12.

As shown in FIG. 3, the course of driving at low RPM, discharging ofexhaust has 10 and wind force are low which cannot overcome the pullingforce of the pulling spring 8. The pulling spring 8 will fully pullupward the wind skirt 7 and the circular body 12 is driven along theinner pillar, urging to the inner wall of the top tube 1, at the gap ofminimum exhaust gas discharged such that the engine exhaust gasdischarge is delayed, which produces a recycling of exhaust gas. When atlow speed, the recycling pressure urges the engine to produce a highertorque.

When speed is gradually increased, as shown in FIG. 4, when the engineRPM increased, the pressure of the exhaust gas is greater than theinstantaneous pulling force of the tension spring 8, a circular body 12is pressed downward due to the discharging force of the engine 10, andvia the pulling rod 5, the wind skirt 7 is driven downward which drivesthe pulling spring 8 downward, gradually opens the circular body 12 tomove along the inner pillar 4 to the discharging gap at the inner wallof the top tube 1.

As shown in FIG. 4, at high speed driving, there is a need of greatamount of exhaust gas in order to obtain a greater power, at this pointof time, the wind force II is sufficient large to pressurize proactivelyto move the wind skirt 7. This wind force II together with the enginedischarging force 10 is largely greater than the pulling force of thepulling spring 8. The wind skirt 7 subjects to the pulling force of thepulling rod 5, will continuously cause the circular body 2 to movebackward until the circular body 2 is blocked by the adjusting screw 9,and thus, the largest gap for discharging is opened. When the vehicle isstopped, the adjusting screw 9 is moved nearer to the circular body 2,the circular body 2 is moved backward and the maximum gap fordischarging is calibrated.

The present invention improves the torque and power of an engine atdifferent driving condition, by controlling the discharging of exhaustgas. In the present invention, the pulling spring does not come intocontact with the temperature of exhaust gas, therefore there is no heatloss.

It will be understood that each of the elements described above, or twoor more together may also find a useful application in other types ofmethods differing from the type described above.

While certain novel features of this invention have been shown anddescribed and are pointed out in the annexed claim, it is not intendedto be limited to the details above, since it will be understood thatvarious omissions, modifications, substitutions and changes in the formsand details of the device illustrated and in its operation can be madeby those skilled in the art without departing in any way from the spiritof the present invention.

1. An exhaust gas charger for a vehicle engine comprising an exhaustpipe with narrow openings at both ends thereof and a wide center cavity,an inner pillar at the axis of the pipe, a circular body, a wind skirt,a plurality of tension springs and a plurality of pulling rods,characterized in that the exhaust pipe is formed from the inner pillarhaving one end being mounted with a top tube and the other end ismounted with a rear tube such that the top tube and the rear tube areengaged with each other and a spring suspension hook is positioned atthe engaging area of the two tubes and the circular body is positionedat the interior of the top tube and has a larger size than the openingof the top tube, and the center circular hole of the circular bodyallows the passage of the inner pillar such that the circular body isallowed to reciprocate upward along the inner pillar, the circular bodyfaces the rear end of the opening of the top tube and the pulling rodsare mounted vertically to the circular body at equidistant such that theother end of the pulling rod secured to the circular body is protruded alateral hole at the rear pipe which corresponds to the frame at theopening of the rear pipe and the windward side of the wind skirt isprovided with a wind skirt lateral hole, and a screw nut is used tosecure the pulling rods, and one end of the pulling spring is hooked tothe surrounding of the wind skirt at an appropriate equidistantposition, and the other end of the pulling spring is hooked onto thespring suspension hook, and the frame is mounted with an adjustablescrew, wherein the rod end of the screw faces the circular body.